We ran out of spare bulbs so I was tasked with getting new ones.
"None of that LED crap mind".

Now I knew 'florescent' lights set of (photo sensitive) epilepsy
due to their flicker, and that the 'old' energy saving bulbs used to
take ages to brighten up. So back then filament was the way to go.
Nowadays I can't seem to get filament bulbs for love nor money
(except on Amazon where they tend to get crap reviews)is there a reason
to still use filament bulbs rather than LED ones?
Would think the difference in purchase price is WAY outweighed by
running and replacement savings.

soup wrote:

is there a reason to still use filament bulbs rather than LED ones?

IME, no.

On 20/11/18 13:46, soup wrote:
We ran out of spare bulbs so I was tasked with getting new ones.
"None of that LED crap mind".

Now I knew 'florescent' lights set of (photo sensitive) epilepsy
due to their flicker, and that the 'old' energy saving bulbs used to
take ages to brighten up. So back then filament was the way to go.
Nowadays I can't seem to get filament bulbs for love nor money
(except on Amazon where they tend to get crap reviews)is there a reason
to still use filament bulbs rather than LED ones?
Would think the difference in purchase price is WAY outweighed by
running and replacement savings.


It has taken me a long time to convert to LED bulbs and I still haven't
fully converted. I've not change en-masse, more as bulbs fail, other
than in a few places were I want Smart bulbs controlled by Alexa.

I've found a good source for most bulbs- to replace basic 100W and 60W,
from Ikea, including there Tradri 'Smart' bulbs which work with Alexa.
The Ikea bulbs are mainly Edison Screw, which is a niggle, but you can
by converters, or change the fittings.

B&Q do some (Dial?) which I've also used, they seem fine.

I have a Philips HUE Smart one, it was 'free' with one of our Alexa's.
It is good, but they are more expensive than the Ikea ones. However, I
think they will work with Hive, which the Ikea ones don't.

For florescent replacements, I used the ones from Screwfix, I think
about £15 each for the 5ft ones (I use in the garage). You get a special
'starter' (really just a blank/short circuit) and pop in the new tube.
No flicker, instant light, and very bright etc.

I can't find a Smart Golf ball LED or even dimmable bulb equivalent to 40W.


--


Smile for the camera ;-)
https://www.youtube.com/watch?v=HxyL2_38EsQ
Remarkable Coincidences:
The Stock Market Crashes of 1929 and 2008 happened on the same
date in October. In Oct 1907, a run on the Knickerbocker Trust
Company led to the Great Depression.

In article ,
Andy Burns wrote:
soup wrote:

is there a reason to still use filament bulbs rather than LED ones?

IME, no.

There are some reasons. Like where the 'bulb' is visible and looks better
than the LED equivalent. And the actual light quality from a LED still
doesn't match that of halogen. Although it may get there eventually.

--
*Middle age is when work is a lot less fun - and fun a lot more work.

Dave Plowman London SW
To e-mail, change noise into sound.

On 20/11/2018 13:46, soup wrote:

We ran out of spare bulbs so I was tasked with getting new ones.
"None of that LED crap mind".

Now I knew 'florescent' lights set of (photo sensitive) epilepsy
due to their flicker, and that the 'old' energy saving bulbs used to
take ages to brighten up. So back then filament was the way to go.
Nowadays I can't seem to get filament bulbs for love nor money
(except on Amazon where they tend to get crap reviews)is there a reason
to still use filament bulbs rather than LED ones?

There are a few reasons:

You can't get adequate light output from a single lamp

They need to operate in a high temperature environment where the
electronics of a LED lamp would fail.

Where full spectrum colour is absolutely required (all the current
"white" LEDs are AFAIAA basically generating light using fluorescent
phosphors being excited by blue LEDs - and so produce white light with a
discontinuous spectra in much the same way as a CFL and other discharge
lighting)

In very low usage scenarios, where its not worth the cost of a more
expensive lamp. (I have a conventional bulb in my shed - it probably
gets turned on for less than an hour a year).

Where you have a long wire run with some inductive coupling that causes
LED lamps to flash when turned off.

Where you need some additional minimum load on a dimmer.

Where you need a full and very wide range of dimming, and want to retain
the natural shift in colour temperature that you get with filament lamps.

In applications that flash lamps - some LEDs don't decay in output as
quickly due to their capacitive droppers/PSUs.

You need a form factor not available in LED

You don't like the light quality / colour

Would think the difference in purchase price is WAY outweighed by
running and replacement savings.

In the majority of cases.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On Tuesday, 20 November 2018 14:12:59 UTC, Dave Plowman (News) wrote:
In article ,
Andy Burns wrote:
soup wrote:

is there a reason to still use filament bulbs rather than LED ones?

IME, no.

There are some reasons. Like where the 'bulb' is visible and looks better
than the LED equivalent. And the actual light quality from a LED still
doesn't match that of halogen. Although it may get there eventually.

Philips have removed the last real use for filaments, in chandeliers, with their, I forget the name, but a plastic crown that creates a filament-like appearance.

The only use left for filaments is in ovens & heaters. And I guess historic fittings that no LED or CFL fits.


NT

On 20/11/2018 14:23, wrote:
On Tuesday, 20 November 2018 14:12:59 UTC, Dave Plowman (News) wrote:
In article ,
Andy Burns wrote:
soup wrote:

is there a reason to still use filament bulbs rather than LED ones?

IME, no.

There are some reasons. Like where the 'bulb' is visible and looks better
than the LED equivalent. And the actual light quality from a LED still
doesn't match that of halogen. Although it may get there eventually.

Philips have removed the last real use for filaments, in chandeliers, with their, I forget the name, but a plastic crown that creates a filament-like appearance.

The only use left for filaments is in ovens & heaters. And I guess historic fittings that no LED or CFL fits.


NT

And lava-lamps. And short-circuit mitigators for electric frankfurter
cookers.

Cheers
--
Clive

On Tuesday, 20 November 2018 14:27:52 UTC, Clive Arthur wrote:
On 20/11/2018 14:23, tabbypurr wrote:
On Tuesday, 20 November 2018 14:12:59 UTC, Dave Plowman (News) wrote:
In article ,
Andy Burns wrote:
soup wrote:

is there a reason to still use filament bulbs rather than LED ones?

IME, no.

There are some reasons. Like where the 'bulb' is visible and looks better
than the LED equivalent. And the actual light quality from a LED still
doesn't match that of halogen. Although it may get there eventually.

Philips have removed the last real use for filaments, in chandeliers, with their, I forget the name, but a plastic crown that creates a filament-like appearance.

The only use left for filaments is in ovens & heaters. And I guess historic fittings that no LED or CFL fits.


NT

And lava-lamps. And short-circuit mitigators for electric frankfurter
cookers.

Cheers

Yes, lava lamps. Didn't realise there were still sausage electrocuters in use.

And dial lamps in old gear. They can't always be replaced with LEDs.
They also work as short current limiters.


NT

On 2018-11-20, Dave Plowman (News) wrote:

In article ,
Andy Burns wrote:
soup wrote:

is there a reason to still use filament bulbs rather than LED ones?

IME, no.

There are some reasons. Like where the 'bulb' is visible and looks better
than the LED equivalent.

Isn't that just a case of "what a light bulb should like" being what
you're used to?


And the actual light quality from a LED still
doesn't match that of halogen. Although it may get there eventually.

On 2018-11-20, Clive Arthur wrote:

On 20/11/2018 14:23, wrote:
On Tuesday, 20 November 2018 14:12:59 UTC, Dave Plowman (News) wrote:
In article ,
Andy Burns wrote:
soup wrote:

is there a reason to still use filament bulbs rather than LED ones?

IME, no.

There are some reasons. Like where the 'bulb' is visible and looks better
than the LED equivalent. And the actual light quality from a LED still
doesn't match that of halogen. Although it may get there eventually.

Philips have removed the last real use for filaments, in chandeliers, with their, I forget the name, but a plastic crown that creates a filament-like appearance.

The only use left for filaments is in ovens & heaters. And I guess historic fittings that no LED or CFL fits.


NT

And lava-lamps.

In the future, they will have a separate LED & heating element!

And short-circuit mitigators for electric frankfurter
cookers.

???

Brian Reay wrote:
No flicker, instant light, and very bright etc.

Sounds like any half-decent, modern, fluorescent fitting! :-)

--
Chris Green
·

On 20/11/18 13:46, soup wrote:
We ran out of spare bulbs so I was tasked with getting new ones.
"None of that LED crap mind".

Now I knew 'florescent' lights set of (photo sensitive) epilepsy
due to their flicker, and that the 'old' energy saving bulbs used to
take ages to brighten up. So back then filament was the way to go.
Nowadays I can't seem to get filament bulbs for love nor money
(except on Amazon where they tend to get crap reviews)is there a reason
to still use filament bulbs rather than LED ones?
Would think the difference in purchase price is WAY outweighed by
running and replacement savings.

Alternative reasons...

"Eventually if domestic consumers ever move over to getting billed in
kVAh (apparent power), we'll be worrying about all the badly made 0.5pf
LED capacitor dropper lamps costing us twice what they promised on their
power rating..."

"CFL bulbs contain mercury, LED bulbs contain arsenic..."

"It glows in the dark, that scares me. The last thing that did that was
my windup alarm clock. They said it was radioactive!!"

"That lamp fitting says 60W Incandescent, so I have to fit an old style
light bulb. I have a bulk store of these.."

"Son, If you remove that light bulb from that socket and don't replace
it quick-as with one of the same, all the electrikery will leak out all
over the floor and I'll owe them an bloomin' fortune..."

--
Adrian C

soup wrote:
We ran out of spare bulbs so I was tasked with getting new ones.
"None of that LED crap mind".

Now I knew 'florescent' lights set of (photo sensitive) epilepsy
due to their flicker, and that the 'old' energy saving bulbs used to
take ages to brighten up. So back then filament was the way to go.
Nowadays I can't seem to get filament bulbs for love nor money
(except on Amazon where they tend to get crap reviews)is there a reason
to still use filament bulbs rather than LED ones?
Would think the difference in purchase price is WAY outweighed by
running and replacement savings.


didn't you know filament lamps mean the end of the earth ecologically?

On 20/11/2018 14:18, John Rumm wrote:
On 20/11/2018 13:46, soup wrote:

We ran out of spare bulbs so I was tasked with getting new ones.
"None of that LED crap mind".

Now I knew 'florescent' lights set of (photo sensitive) epilepsy
due to their flicker, and that the 'old' energy saving bulbs used to
take ages to brighten up. So back then filament was the way to go.
Nowadays I can't seem to get filament bulbs for love nor money
(except on Amazon where they tend to get crap reviews)is there a
reason to still use filament bulbs rather than LED ones?

There are a few reasons:

You can't get adequate light output from a single lamp

That is the only one that I think is still a problem.
No good priced LED equivalents for 150W, 200W and 250W bulbs.

Some corn on cob sorts are available but still expensive as yet.

They need to operate in a high temperature environment where the
electronics of a LED lamp would fail.

That is certainly an issue in ovens and some closed glass shades.

Where full spectrum colour is absolutely required (all the current
"white" LEDs are AFAIAA basically generating light using fluorescent
phosphors being excited by blue LEDs - and so produce white light with a
discontinuous spectra in much the same way as a CFL and other discharge
lighting)

They are very much better than fluorescents but even so you couldn't do
satisfactory daylight colour matching under one.

In very low usage scenarios, where its not worth the cost of a more
expensive lamp. (I have a conventional bulb in my shed - it probably
gets turned on for less than an hour a year).

My remaining filament bulbs are in the seldom used light fittings. It
naturally happens that way if you replace on failure.

Where you have a long wire run with some inductive coupling that causes
LED lamps to flash when turned off.

Where you need some additional minimum load on a dimmer.

That is another practical one where having one filament bulb to match
the dimmers operating load is necessary. Incidentally I am not all that
impressed with supposedly dimmable lights and controllers - a friend
with some high end ones is on his umpteenth free replacement of the
dimmer which seems to expire with monotonous regularity.

Where you need a full and very wide range of dimming, and want to retain
the natural shift in colour temperature that you get with filament lamps.

Some of the variable colour LEDs could be programmed to do that.

In applications that flash lamps - some LEDs don't decay in output as
quickly due to their capacitive droppers/PSUs.

You need a form factor not available in LED

You don't like the light quality / colour

They have come on a long way. Warm white is now a pretty good match for
filament bulbs.

Would think the difference in purchase price is WAY outweighed by
running and replacement savings.

In the majority of cases.

And by some margin. Trouble is people tend to notice the shelf price and
then ignore the longer term lifetime running costs.

--
Regards,
Martin Brown

Chris Green wrote:
Brian Reay wrote:
No flicker, instant light, and very bright etc.

Sounds like any half-decent, modern, fluorescent fitting! :-)

At least you can spell it.

On Tuesday, 20 November 2018 15:06:30 UTC, Adrian Caspersz wrote:

"Eventually if domestic consumers ever move over to getting billed in
kVAh (apparent power), we'll be worrying about all the badly made 0.5pf
LED capacitor dropper lamps costing us twice what they promised on their
power rating..."

still much cheaper than filaments

"CFL bulbs contain mercury, LED bulbs contain arsenic..."

filaments contain thorium


"It glows in the dark, that scares me. The last thing that did that was
my windup alarm clock. They said it was radioactive!!"

no, green glowing alarm clocks were not radioactive. Nor are LEDs. The few radioactive watches glowed all night long without fade.

On 20/11/2018 15:21, Martin Brown wrote:

snip

Trouble is people tend to notice the shelf price and
then ignore the longer term lifetime running costs [of incandescent lamps].


Though I have to admit that while I'd rarely leave an incandescent lamp
on, I will do so more often with an Ellie D.

Cheers
--
Clive

On Tuesday, 20 November 2018 13:46:11 UTC, soup wrote:

is there a reason
to still use filament bulbs rather than LED ones?

Well I still prefer halogen for their warm colour light when dimmed, but LEDs are OK for most things and I prefer the warm white LED ones to the cool ones.

If you don;t want the hassle of getting a new dimmer and dimmable LED's then it might be better sticking with filament.
Filament might have a use in keeping small areas warm, my dad used 15W pigmy bulbs as heat sources in nest boxes and hostital cages when he bred budgies.




Would think the difference in purchase price is WAY outweighed by
running and replacement savings.

On Tue, 20 Nov 2018 14:01:26 +0000, Andy Burns
wrote:

soup wrote:

is there a reason to still use filament bulbs rather than LED ones?

IME, no.

A fridge where there is a setting to leave the light on permanently
during periods of low ambient temperature to force the compressor to
keep working. Mine is a Bosch, with this 'winter' setting. An LED
bulb would be no good as it produces no heat.

On 20/11/2018 14:31, wrote:
On Tuesday, 20 November 2018 14:27:52 UTC, Clive Arthur wrote:
On 20/11/2018 14:23, tabbypurr wrote:
On Tuesday, 20 November 2018 14:12:59 UTC, Dave Plowman (News) wrote:
In article ,
Andy Burns wrote:
soup wrote:

is there a reason to still use filament bulbs rather than LED ones?

IME, no.

There are some reasons. Like where the 'bulb' is visible and looks better
than the LED equivalent. And the actual light quality from a LED still
doesn't match that of halogen. Although it may get there eventually.

Philips have removed the last real use for filaments, in chandeliers, with their, I forget the name, but a plastic crown that creates a filament-like appearance.

The only use left for filaments is in ovens & heaters. And I guess historic fittings that no LED or CFL fits.


NT

And lava-lamps. And short-circuit mitigators for electric frankfurter
cookers.

Cheers

Yes, lava lamps. Didn't realise there were still sausage electrocuters in use.

And dial lamps in old gear. They can't always be replaced with LEDs.
They also work as short current limiters.

Indeed a favourite of anyone doing repair on electronics with high
voltage thermionic devices on board.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On Tue, 20 Nov 2018 13:46:10 +0000, soup
wrote:

Nowadays I can't seem to get filament bulbs for love nor money
(except on Amazon where they tend to get crap reviews)

Plenty of halogens in Tescos round here - also Aldi - and a couple of
shelves full in B&M..

On Tuesday, 20 November 2018 15:28:30 UTC, wrote:
On Tuesday, 20 November 2018 15:06:30 UTC, Adrian Caspersz wrote:

"Eventually if domestic consumers ever move over to getting billed in
kVAh (apparent power), we'll be worrying about all the badly made 0.5pf
LED capacitor dropper lamps costing us twice what they promised on their
power rating..."

still much cheaper than filaments

"CFL bulbs contain mercury, LED bulbs contain arsenic..."

filaments contain thorium


"It glows in the dark, that scares me. The last thing that did that was
my windup alarm clock. They said it was radioactive!!"

no, green glowing alarm clocks were not radioactive. Nor are LEDs. The few radioactive watches glowed all night long without fade.

I've often wondered about the older Fluorescent condoms I assume the newer types are OK.

On 20/11/2018 15:28, wrote:
On Tuesday, 20 November 2018 15:06:30 UTC, Adrian Caspersz wrote:

"Eventually if domestic consumers ever move over to getting billed
in kVAh (apparent power), we'll be worrying about all the badly
made 0.5pf LED capacitor dropper lamps costing us twice what they
promised on their power rating..."

still much cheaper than filaments

"CFL bulbs contain mercury, LED bulbs contain arsenic..."

filaments contain thorium


"It glows in the dark, that scares me. The last thing that did that
was my windup alarm clock. They said it was radioactive!!"

no, green glowing alarm clocks were not radioactive. Nor are LEDs.
The few radioactive watches glowed all night long without fade.

Depends on the age and technology used. My father's wrist watch has
radium painted hands and glows in the dark come what may. Back then the
old zinc sulphide green glow phosphors were a bit rubbish.

Tritiated plastic used for emergency exits and fishing floats is also
hot (also in some LED watches the 1980's). Enclosed by glass the 19keV
emission from tritium is more like a cathode ray than radiation.

The best modern phosphors will last all night - 3M made a really nice
emergency torch that was made of very glow in the dark plastic. Charged
in sunlight it was bright enough to see by once fully dark adapted.

--
Regards,
Martin Brown

On 20/11/2018 14:41, Chris Green wrote:
Brian Reay wrote:
No flicker, instant light, and very bright etc.

And the same efficiency.

Bill

On 20/11/2018 15:28, wrote:

no, green glowing alarm clocks were not radioactive. Nor are LEDs.
The few radioactive watches glowed all night long without fade.


I had one that was, they used radium in the paint.

The radioactive watches faded over the years as they had a short half
life. Tritium IIRC.

On 20/11/2018 15:21, Martin Brown wrote:
On 20/11/2018 14:18, John Rumm wrote:
On 20/11/2018 13:46, soup wrote:

We ran out of spare bulbs so I was tasked with getting new ones.
"None of that LED crap mind".

Now I knew 'florescent' lights set of (photo sensitive) epilepsy
due to their flicker, and that the 'old' energy saving bulbs used to
take ages to brighten up. So back then filament was the way to go.
Nowadays I can't seem to get filament bulbs for love nor money
(except on Amazon where they tend to get crap reviews)is there a
reason to still use filament bulbs rather than LED ones?

There are a few reasons:

You can't get adequate light output from a single lamp

That is the only one that I think is still a problem.
No good priced LED equivalents for 150W, 200W and 250W bulbs.

i have some 70W panels like bigclive tested and they are extremely bright.


much brighter than a 250w bulb.

odd shape though and only 12V.

On 20/11/2018 14:41, Chris Green wrote:
Brian Reay wrote:
No flicker, instant light, and very bright etc.

Sounds like any half-decent, modern, fluorescent fitting! :-)


Possibly. The fittings in my garage are at least 20 years old, probably
older. There were in place when we bought the house and the conventional
tube life is terrible- so much so that I started to wonder if they were
T12 fittings and I was using T8 tubes.

I've only replaced one with an LED tube so far but the others will be
replaced as they fail- I don't see the point in dumping working tubes.

I'll do the same in my electronics workshop. There the fittings were new
about 18 years back. Those tubes have lasted well.

--

Smile for the camera ;-)
https://www.youtube.com/watch?v=HxyL2_38EsQ

https://www.gov.uk/report-benefit-fraud

https://www.jobcentreguide.org/claim...-benefit-fraud

https://childsworldamerica.org/anima...o-child-abuse/

Scott wrote:

Andy Burns wrote:

soup wrote:

is there a reason to still use filament bulbs rather than LED ones?

IME, no.

A fridge

Sure, places where you would fit a specialist bulb like a fridge, or an
oven, you'd continue to do so, but anywhere I'd put a bog standard bulb,
I'd now put an LED.

On 20/11/18 13:46, soup wrote:
We ran out of spare bulbs so I was tasked with getting new ones.
"None of that LED crap mind".

IME of the last very few years, the LED stuff has surpassed the
performance of any domestic filament bulb.

The "pseudo filament" stuff has taken off bringing a wide variety of
"artsy" bulbs too. For candle stule, these filament string type actually
put out very good light and Philips have some that even drop their
colour temperature as you dim them - they actually feel really nice.

However, you get what you pay for - you can either get lucky with some
el-cheapos anb even if they die after a year, you feel fine.

Or you can go with some of the better brands. I tend to write the
install date in Sharpie on mine near the base.

Philips seem to last for years but are also the most expensive.

LEDHut seem to do a couple of years from a batch before the odd one
starts to pop. Now they do have an extended warranty, but I find I never
do the paperwork (it was an actual form) so that's pretty useless to me
personally. However, IIRC their "no paper" base warranty is something
like 2 years and I've returned the odd one and had a no fuss replacement.

Both LEDHut and Philips bulbs give (if you buy the brightest)
exceptional light output and decent light quality. If you are an artist
and CRI matters, you'll need to step up to a more pro bulb, but I prefer
LED to filament in terms of light for light.

That is my 2p on the matter and it's worth about the same


Now I knew 'florescent' lights set of (photo sensitive) epilepsy
due to their flicker, and that the 'old' energy saving bulbs used to
take ages to brighten up. So back then filament was the way to go.
Nowadays I can't seem to get filament bulbs for love nor money
(except on Amazon where they tend to get crap reviews)is there a reason
to still use filament bulbs rather than LED ones?
Would think the difference in purchase price is WAY outweighed by
running and replacement savings.


--
Email does not work

On 20/11/18 14:04, Brian Reay wrote:
On 20/11/18 13:46, soup wrote:
We ran out of spare bulbs so I was tasked with getting new ones.
"None of that LED crap mind".

Now I knew 'florescent' lights set of (photo sensitive) epilepsy
due to their flicker, and that the 'old' energy saving bulbs used to
take ages to brighten up. So back then filament was the way to go.
Nowadays I can't seem to get filament bulbs for love nor money
(except on Amazon where they tend to get crap reviews)is there a
reason to still use filament bulbs rather than LED ones?
Would think the difference in purchase price is WAY outweighed by
running and replacement savings.


It has taken me a long time to convert to LED bulbs and I still haven't
fully converted. I've not change en-masse, more as bulbs fail, other
than in a few places were I want Smart bulbs controlled by Alexa.

The only filaments I have left are the 12V G4's in the bathroom - as
I've not seen any dimmable LEDs I like (and I would have to find a PSU
that didn't mind the pull cord dimmer that I have to assume is probably
a leading edge old style triac jobbie).


--
Email does not work

On 20/11/2018 13:46, soup wrote:
We ran out of spare bulbs so I was tasked with getting new ones.
"None of that LED crap mind".

Now I knew 'florescent' lights set of (photo sensitive) epilepsy
due to their flicker, and that the 'old' energy saving bulbs used to
take ages to brighten up. So back then filament was the way to go.
Nowadays I can't seem to get filament bulbs for love nor money
(except on Amazon where they tend to get crap reviews)is there a reason
to still use filament bulbs rather than LED ones?
Would think the difference in purchase price is WAY outweighed by
running and replacement savings.

Thanks all.
These lamps will just be used for domestic (i.e. Non-specialised
{cooker, fridge etc]) undimmed applications so there seems no real
reason not to get an LED bulb.

Andy Burns wrote:
soup wrote:

is there a reason to still use filament bulbs rather than LED ones?

IME, no.



Yes. Try putting an LED in your oven lamp holder.

Tim

--
Please don't feed the trolls

In article ,
wrote:
There are some reasons. Like where the 'bulb' is visible and looks
better than the LED equivalent. And the actual light quality from a
LED still doesn't match that of halogen. Although it may get there
eventually.

Philips have removed the last real use for filaments, in chandeliers,
with their, I forget the name, but a plastic crown that creates a
filament-like appearance.

Are you saying you can't tell the difference between these LED imitations
and the real thing? I can.

--
*I brake for no apparent reason.

Dave Plowman London SW
To e-mail, change noise into sound.

In article ,
Adam Funk wrote:
There are some reasons. Like where the 'bulb' is visible and looks
better than the LED equivalent.

Isn't that just a case of "what a light bulb should like" being what
you're used to?

Both CFL and LED have attempted to look the same. Perhaps that's why they
haven't succeeded for everyone.

If all you want is light to see your way by, they're likely OK. Some may
have extra requirements.

--
*I didn't say it was your fault, I said I was blaming you.

Dave Plowman London SW
To e-mail, change noise into sound.

So your question is, do leds flicker?
the problem of whether any kind of light flickers is an interesting one. I
did see some old fashioned tubes with long persistence phosphor which meant,
in theory, much less flicker, but when these were fitted onto a large area,
like Tescos there appeared to be a kind of wave washing over the ceiling of
the room, which made one feel very queasy.
LEDs one supposes if in series and somehow half driven on each phase of the
mains are going to flicker at 100 hz. maybe some kind of DC psu could be
derived which was constant enough to make no flicker, but what of the wave
effect? Is this due to different mains phases or what, I now have too little
sight to test it.
Brian

--
----- --
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"soup" wrote in message
...
We ran out of spare bulbs so I was tasked with getting new ones.
"None of that LED crap mind".

Now I knew 'florescent' lights set of (photo sensitive) epilepsy
due to their flicker, and that the 'old' energy saving bulbs used to take
ages to brighten up. So back then filament was the way to go.
Nowadays I can't seem to get filament bulbs for love nor money
(except on Amazon where they tend to get crap reviews)is there a reason to
still use filament bulbs rather than LED ones?
Would think the difference in purchase price is WAY outweighed by running
and replacement savings.

I never liked Halogen, the light seemed to be green to me, but remember I
have always had an eye condition.
Brian

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On Tuesday, 20 November 2018 14:12:59 UTC, Dave Plowman (News) wrote:
In article ,
Andy Burns wrote:
soup wrote:

is there a reason to still use filament bulbs rather than LED ones?

IME, no.

There are some reasons. Like where the 'bulb' is visible and looks better
than the LED equivalent. And the actual light quality from a LED still
doesn't match that of halogen. Although it may get there eventually.

Philips have removed the last real use for filaments, in chandeliers, with
their, I forget the name, but a plastic crown that creates a filament-like
appearance.

The only use left for filaments is in ovens & heaters. And I guess
historic fittings that no LED or CFL fits.


NT

I doubt that, but they are certainly less efficient as much of their output
is heat.
Brian

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soup wrote:
We ran out of spare bulbs so I was tasked with getting new ones.
"None of that LED crap mind".

Now I knew 'florescent' lights set of (photo sensitive) epilepsy
due to their flicker, and that the 'old' energy saving bulbs used to take
ages to brighten up. So back then filament was the way to go.
Nowadays I can't seem to get filament bulbs for love nor money
(except on Amazon where they tend to get crap reviews)is there a reason
to still use filament bulbs rather than LED ones?
Would think the difference in purchase price is WAY outweighed by running
and replacement savings.


didn't you know filament lamps mean the end of the earth ecologically?

On Tue, 20 Nov 2018 17:00:04 +0000, Andy Burns
wrote:

Scott wrote:

Andy Burns wrote:

soup wrote:

is there a reason to still use filament bulbs rather than LED ones?

IME, no.

A fridge

Sure, places where you would fit a specialist bulb like a fridge, or an
oven, you'd continue to do so, but anywhere I'd put a bog standard bulb,
I'd now put an LED.

I agree. I have just fitted two G9 LEDs in the bog.

Adrian Caspersz wrote:
"LED bulbs contain arsenic..."

Do they? I though the semiconductor was gallium nitride, on a silicon
carbide or aluminium oxide substrate, and the phosphor is often cerium-doped
yttrium aluminium garnet (Ce:YAG).

There might be an infinitesimal amount of n-type doping, which can be
arsenic, but it's tightly bound to the semiconductor lattice. A random
source suggested roughly 10^16 atoms/cm3, which is about 1 microgram/cm3 of
arsenic in the doped layer, which might be 200nm thick. So a doped chip
might be 10^-16 grams of arsenic per cm2 of chip area.

Probably not worth breaking out the hazmat suits.

Theo

whisky-dave wrote
soup wrote

is there a reason to still use filament bulbs rather than LED ones?

Well I still prefer halogen for their warm colour light when dimmed,

The best leds let you set any color temp you like at any light level.

but LEDs are OK for most things and I prefer
the warm white LED ones to the cool ones.

I dont, I find them too yellow although
I previously use PAR38s inside the house.

If you don;t want the hassle of getting a new dimmer and
dimmable LED's then it might be better sticking with filament.

Or get the best leds that have full control over
the dimming and color temp in the bulb itself.

Filament might have a use in keeping small areas warm,
my dad used 15W pigmy bulbs as heat sources in nest
boxes and hostital cages when he bred budgies.

Would think the difference in purchase price is WAY
outweighed by running and replacement savings.

As long as the bulb lasts. The best of them do.